Raw Glaze

Raw glaze: Although this term is frequently used by studio potters to refer to the practice of glazing pots when they are raw, it strictly (particularly in industry) denotes a glaze which is, itself, composed of raw, unfritted materials.Reduction firing: The firing of ware in a kiln where there is an insufficient supply of oxygen in the in the chamber, so that combustion is incomplete, causing the flames to draw on the combined oxygen in the fabric of the ware, which has the effect of reducing oxides to their respective metal forms.

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